1, Q345B seamless tube's deposited on the surface of the dust containing other chemical molecules or orcs metal composite materials of fine particulate matter attachments, in the humid air, attachments and stainless steel plate, the condensed water between the two combined into a rechargeable battery, the electrochemical reaction caused by protective membrane damage, to call the galvanic battery principle.
2, Organic juice adheres to the surface of Q345B seamless tube, and in the case of ice oxygen, sodium citrate is formed. In the long term, sodium citrate is the erosion of metal material surface.
3, Q345B seamless tube surface adhesion contains acid, alkali, phosphate compounds (such as room decoration wall food soda, lime powder splash), resulting in a part of the erosion.
4, Q345B seamless tube in the air pollution (such as containing a lot of potassium thiocyanate, carbon oxide, sulfur oxide gas), condensate, resulting in sulfuric acid, sodium cyanide, glacial acetic acid liquid point, leading to chemical corrosion.
